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nevsk [136]
2 years ago
6

(50 points + brainliest if found useful.)

Mathematics
2 answers:
Alexxandr [17]2 years ago
6 0

Answer:

C

Step-by-step explanation:

9x-4+5x+16=180

14x+12=180

14x=168

x=12

blagie [28]2 years ago
4 0

Answer:

  C)  12

Step-by-step explanation:

Consecutive interior angles are supplementary:

  (9x -4)° +(5x +16)° = 180°

  14x = 168 . . . . . . divide by °, subtract 12

  x = 12 . . . . . . . . divide by 14

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